A seed-aggregate composed from one evil seed and one ordinary seed is called an ordinary evilquark. It is represented symbolically using the letter e. Here is a mathematical statement of the definition along with an icon to illustrate the quark.

$\sf{ e \equiv \left\{ E, O \right\} }$

You can usually click on quark icons to come back to a page like this for reference. The evil anti-quark is defined as the union of one evil seed with an odd seed.